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https://issues.apache.org/jira/browse/HBASE-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459386#comment-13459386
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Elliott Clark commented on HBASE-4050:
--------------------------------------
One of the patches above was the one that added the compat jars and the first
versions of some of the classes that were used. A couple patches have since
been committed with hbase-4050 in the commit message even though the code was
from sub-issues.
This really has one issue left to solve and then the metrics2 move will be
complete. Now that all testing is possible and all the helper classes are in
(MetricsAssertHelper, MetricsHistogram, and MetricQuantile) just the region
server is left. I'll start work on that. However it will be the most detail
oriented so it might take a little longer than some of the other sub-issues.
> Update HBase metrics framework to metrics2 framework
> ----------------------------------------------------
>
> Key: HBASE-4050
> URL: https://issues.apache.org/jira/browse/HBASE-4050
> Project: HBase
> Issue Type: New Feature
> Components: metrics
> Affects Versions: 0.90.4
> Environment: Java 6
> Reporter: Eric Yang
> Assignee: Elliott Clark
> Priority: Critical
> Fix For: 0.96.0
>
> Attachments: 4050-metrics-v2.patch, 4050-metrics-v3.patch,
> HBASE-4050-0.patch, HBASE-4050-1.patch, HBASE-4050-2.patch,
> HBASE-4050-3.patch, HBASE-4050-5.patch, HBASE-4050-6.patch,
> HBASE-4050-7.patch, HBASE-4050-8_1.patch, HBASE-4050-8.patch, HBASE-4050.patch
>
>
> Metrics Framework has been marked deprecated in Hadoop 0.20.203+ and 0.22+,
> and it might get removed in future Hadoop release. Hence, HBase needs to
> revise the dependency of MetricsContext to use Metrics2 framework.
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